Intrahospital vehicle for transport and transfer of obese patients

Abstract

An intrahospital vehicle for transport and transfer of obese patients designed to take a bedridden obese patient, lift the patient up and then lay the patient down onto a receiving stretcher to transfer the patient within a hospital, so that, once the target location has been reached, the patient may be transferred to an operating table, X-ray table, intensive care unit table or the like, and then transferred back to the receiving stretcher to return to the hospital bed. The vehicle includes a robust main rectangular base structure, mounted on wheels, a lower chassis formed by a rear crossbar and two side rails, from which four corner columns are projected.

Claims

1. An intrahospital vehicle for transport and transfer of obese patients designed to take a bedridden obese patient, lift the patient up and then lay the patient down onto a receiving stretcher to transfer the patient within a hospital, so that, once the target location has been reached, the patient may be transferred to an operating table, X-ray table, intensive care unit table or the like, and then transferred back to the receiving stretcher to return to the hospital bed, wherein said vehicle comprises a main rectangular base structure, mounted on wheels, said structure comprising a lower chassis formed by a rear crossbar and two side rails, from which four corner columns are projected, said columns forming respective guides for sliding a vertically movable lift, defined by a quadrangular base frame that is moved by pushing linear actuators while, on the rear face of the same main structure, a stretcher receiving the patient to be transferred and transported is arranged, said stretcher built on a structural frame that, at a resting position, is presented in vertical orientation, which may be moved until horizontally positioned on a plane lower than that of the frame of the lift, and then anchored to the intermediate rails of said main structure.

2. An intrahospital vehicle for transport and transfer of obese patients according to claim 1, wherein the lower chassis formed by side rails joined together by rear crossbar, defines a base in the shape of a lying C, the dimension of which is larger than that of a conventional hospital bed.

3. An intrahospital vehicle for transport and transfer of obese patients according to claim 1, wherein the four corner columns projecting from the lower chassis comprise respective lower sections prolonging into respective upper sections which, being shorter than the lower sections, form the sliding track of the vertically movable lift.

4. An intrahospital vehicle for transport and transfer of obese patients according to claim 1, wherein the vertically movable lift is built on a quadrangular frame which, in correspondence with corner vertices of said frame, defines respective hollow boxes enclosing upper sections of the corner columns of the main structure, each of them housing pairs of lower and higher transverse axes, carrying respective inner bearings that are supported on the planar faces defining said columns, thus allowing for vertical movement in both senses.

5. An intrahospital vehicle for transport and transfer of obese patients according to claim 1, wherein actuators are electrical linear actuators that actuate lifting means, that extend between outer intermediate rails in cooperation with corner columns of the main structure, and side rails of the lift.

6. An intrahospital vehicle for transport and transfer of obese patients according to claim 1, wherein lift sheet onto which the patient is laid comprises anchor straps that are passed through hooks tied to straps hanging from crossbars of the quadrangular frame of the lift.

7. An intrahospital vehicle for transport and transfer of obese patients according to claim 1, wherein the rear corner columns of the main structure incorporate respective vertically sliding guides extending to define a horizontal section on inner intermediate rails of said structure, said guides housing and sliding corresponding higher bolts that project from crossbars of the receiving stretcher.

8. An intrahospital vehicle for transport and transfer of obese patients according to claim 1, wherein receiving stretcher is supported on the intermediate rails of the main structure, intercalating a pivoting slider defining the guided movement mechanism to position said stretcher into vertical patient resting position, or horizontal patient supporting position.

9. An intrahospital vehicle for transport and transfer of obese patients according to claim 8, wherein the pivoting slider uses a respective guiding member per each side of the stretcher, comprising a planar plate which, from one face, projects a pair of wheels provided to support on the higher horizontal face of the intermediate rails of the main structure, and a bolt provided to be in front of the lower horizontal face of said intermediate rails, while on the opposite face, said plate projects the pivoting axis inferiorly positioned on each of side rails of the receiving stretcher.

10. An intrahospital vehicle for transport and transfer of obese patients according to claim 1, wherein the stretcher is anchored to the intermediate rails of the main structure by means of through bolts.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) In order to achieve the aforementioned summarized advantages, to which users and persons of ordinary skill in the art will be able to add many more, and for the sake of better understanding the constructive, constitutive, and functional features of the intrahospital vehicle of the present disclosure, an example of a preferred embodiment is next described, which is schematically illustrated (not to scale) in the figures as follows.

(2) FIG. 1 is a perspective view showing the vehicle of the present disclosure, based on its general aspects as a whole, with the patient-receiving platform arranged in use position.

(3) FIG. 2 is also a perspective view showing the vehicle of the present disclosure, based on its general aspects as a whole, in this case with the patient lifted and the patient-receiving platform arranged in resting position.

(4) FIG. 3 is also a perspective view showing the vehicle of the present disclosure, based on its general aspects as a whole, in this case with the patient lifted and the patient-receiving platform arranged in use position.

(5) FIG. 4 is a perspective view showing the same vehicle from a side face, with an operator initiating movement of the patient-receiving platform from its resting position.

(6) FIG. 5 is a perspective view showing the same vehicle from a side face, with an operator continuing moving the patient-receiving platform towards the horizontal plane such that is positioned to receive the patient.

(7) FIG. 6 is also a perspective view showing the same vehicle from a side face, in this case with the same operator moving the patient-receiving platform on an edge section in order to be arranged on a horizontal plane.

(8) FIG. 7 is a perspective exploded view showing the guide defined on the vehicle structure for the purposes of moving the patient-receiving platform.

(9) FIG. 8 is a perspective exploded view showing a sliding member used for moving the patient-receiving platform.

(10) FIG. 9 is an exploded view showing how the sliding member of the preceding figure is arranged, supported on a chassis intermediate crossbar for movement thereof by guiding the patient-receiving platform.

(11) FIG. 10 is an exploded view showing how the patient-receiving platform is mounted on the vehicle structure.

(12) FIG. 11 is a perspective view showing the same patient-receiving platform in a constructive option that includes an adjustable inclination section.

(13) FIG. 12 is an exploded view showing a constructive option incorporated to mount the adjustable inclination section depicted in the preceding figure.

(14) It should be appreciated that, in all the figures, like reference numerals reference like or equivalent parts or elements forming the assembly, depending on the example chosen for the present explanation of the intrahospital vehicle of the present disclosure.

DETAILED DESCRIPTION OF THE DISCLOSURE

(15) As it may be seen in the figures, the intrahospital vehicle of the present disclosure is built on a main structure mounted on rotatory-type wheels (1), (2), (3), and (4) to facilitate movement and maneuvering.

(16) The main structure comprises a lower chassis formed by quadrangular plate profiles, defined by side rails (5) and (6) joined together by the rear crossbar (7).

(17) Four corner columns are projected from said lower chassis, each of them comprising lower sections (8), (9), (10) and (11) extending into respective upper sections (12), (13), (14) and (15) which, being smaller than the lower sections, form the sliding track of a vertically movable lift created to cooperate in the process of transferring the obese patient.

(18) As stated above, this lower chassis is distinctive because it is longer than any hospital bed, and it does not comprise any front crossbar; i.e., it is a plan chassis shaped as a lying C, the sides of which would form side rails (5) and (6). Thus, the vehicle of the disclosure can transversely move forward, thus enclosing the bed on which the obese patient is lying, in order to arrange the lift over the same.

(19) Indeed, the vertically movable lift comprises a quadrangular base frame formed by crossbars (16) and (17) that are joined together through side rails (18) and (19), with the particularity that, in correspondence with its corner vertices, they define respective hollow boxes (20), (21), (22) and (23) enclosing aforementioned upper sections (12), (13), (14) and (15) of the corner columns. These boxes include and support a pair of lower (24) and upper (25) transverse axes, carrying inner bearings supported on the flat faces defining said upper sections (12), (13), (14) and (15), thus allowing this lift to be able to vertically move in both senses.

(20) For these vertical movements, the vehicle of the present disclosure uses electrical linear actuators (26) and (27) that actuate lifting means (28) and (29) that are extended between outer intermediate rails (30) and (31) in cooperation with lower sections (8), (9), (10) and (11) of the columns, and the above-mentioned side rails (18) and (19) of the lift.

(21) This way, it is ensured that movements are smooth and accurate, while having the necessary power provided by said linear actuators (26) and (27) which may be commanded by the corresponding remote control.

(22) It is possible to see especially in FIG. 3, that the lift described is provided to take the obese patient (0) from the bed and lift him up, keeping him in this position until the stretcher-bearer places and secures the receiving platform (P), after which the patient is lowered until he finally rests thereonto.

(23) In this preferred embodiment, lift sheet (32) onto which patient (O) rests is fastened to crossbars (16) and (17) of the lift through anchor straps (34) that are passed through hooks (35) tied to the straps of the lift (36) hanging from crossbars (16) and (17).

(24) With reference now to FIG. 2, it is possible to observe that, on the rear face of the main structure, the vehicle of the present disclosure comprises a receiving stretcher that is arranged on a quadrangular base structural frame, also consisting of bent metal sheet profiles defining both crossbars (37) and (38) that remain joined together through side rails (39) and (40).

(25) With particular reference to FIGS. 4, 5 and 6, it may be seen that this receiving stretcher has been designed to lie horizontally on the rear face of the vehicle, adopting the resting position (as represented in FIG. 2), and move from said position until reaching a horizontal plane (as shown in FIGS. 1, 3 and 6).

(26) This is an assembly especially designed so that a stretcher-bearer or nurse (E) can proceed with movement from one position to the other, in an easy and straightforward manner, without any effort whatsoever.

(27) To this end, as especially shown in FIGS. 1 and 7, lower sections (9) and (11) of the columns of the main structure comprise respective vertically sliding guides (46) and (47) prolonged to define a horizontal section (48) (shown in FIG. 7) on inner intermediate rails (49) and (50) that are extended between said columns of the main structure, adjacent to outer intermediate rails (30) and (31).

(28) In this guide, corresponding higher bolts (51) are housed and slid, said bolts projecting from side rails (39) and (40) of the structural frame (shown in FIGS. 2 and 10).

(29) Furthermore, for sliding to be simple, smooth and straightforward, guiding members (C) of special construction have been incorporated, said guiding members created for the stretcher-bearer just to conduct movement with no effort whatsoever.

(30) They are arranged each at one side of the stretcher (P) forming a pivoting slider that completes the guided movement mechanism to position said stretcher into vertical patient resting position, or horizontal patient supporting position.

(31) Indeed, as shown in FIGS. 8, 9 and 10, each guiding member comprises a planar plate (55) which, from one face, projects a pair of wheels (52/53) provided to support onto the outer horizontal face of inner intermediate rails (49) and (50), and a bolt (54) (shown in FIG. 8), provided to dispose in front of the lower horizontal face of the same inner intermediate rails to avoid derailing.

(32) On the opposite face of said plate (55), the same guiding member (C) projects pivoting axis (56) that is inferiorly positioned on each of side rails (39) and (40) of this receiving stretcher.

(33) Once the stretcher is presented at its horizontal position (FIGS. 1 and 3), for stable anchoring, stable fixing bolts (57) are incorporated to transverse said side rails (39) and (40) and fixed to inner intermediate rails (49) and (50) of the main structure.

(34) With reference now to FIGS. 1 and 2, as well as the details in FIGS. 11 and 12, it is possible to appreciate, in preferred embodiments of the structural frame defining the carrier stretcher, a fixed section incorporating profiles (42) and (43) that are fixed to crossbars (37) and (38), combined with short crossbar (44), with a reclinable portion formed by frame (45) the cylindrical crossbar (58) of which is an axis of rotation mounted on said crossbars (37) and (38).

(35) As especially shown by the exploded view in FIG. 12, it is appreciated that, in cooperation with said axis of rotation (58) drive arm (59) is located, facing downwards and centrally disposed. Upon actuation of lift (60), which is commanded by electromechanical actuator (61), said arm produces movements allowing for selective inclination positions to the patient.

(36) Finally, it is highlighted that, on the basis of reference (S), FIGS. 1 and 3 incorporate a small enclosure housing the integral electrical actuation system of the vehicle of the present disclosure, including a remote control that will be used by the stretcher-bearer or nurse for the required maneuvers. Said electrical system is not described for it is not considered to be within the scope of the present disclosure.

(37) Having described the construction of the intrahospital vehicle of the present disclosure, said vehicle operates as outlined in the following steps:

(38) 1. While the patient is lying on the bed, the nurse shall place the lift sheet (32), and then actuate.

(39) 2. While the patient is still lying on the bed, with lift sheet (32) incorporated, the vehicle of the present disclosure comes closer advancing transversally until reaching a position that encloses the bed and the bedridden patient (O).

(40) 3. Thereafter, the nurse shall lower the lift by commanding its movement with the remote control until holding hooks (35) can pass through the loops of the straps (34) of the lift sheet. As a result, once all the hooks have been fastened, the obese patient is linked to the device.

(41) 4. The nurse shall actuate the same remote control so that linear actuators (27/28) can produce upward movement of the lift, separating and removing the patient from the bed, said patient being firmly held and suspended within the vehicle (FIG. 3).

(42) 5. Then the nurse shall move the vehicle away from its position over the bed with the patient in suspended position, and proceed to position the patient onto the receiving stretcher (P).

(43) 6. Previously, the nurse (E), shall secure the stretcher with both hands (as shown in FIGS. 4, 5 and 6) and move it smoothly from its vertical position to a horizontal position, all this with minimum effort thanks to the counterbalance of the stretcher and to guiding members (C) that facilitate maneuvering thereof.

(44) 7. Once said receiving stretcher is horizontally positioned, four fixing bolts (57) are introduced for the sake of immovability and resistance of the assembly.

(45) 8. Then the nurse (E), using the same remote control, shall command lowering of the lift until placing the patient to a position such that the patient rests on a soft pad of receiving stretcher (P) (FIG. 3), thus completing the transfer operation of the obese patient.

(46) 9. Once all these maneuvers have taken place, the patient will be in condition for being transported to the target location. Once there, the same maneuvers will have to be conducted in a reverse manner, that is, by lifting the patient up, moving the receiving stretcher to its vertical position, and making the vehicle advance until it is positioned over an operating table or the like, and then lowering the same, removing the fixing hooks from the loops of the lift sheet and remove the vehicle from the room.

(47) 10. Once the patient has been treated at the target location, the patient is moved away with the same vehicle of the present disclosure. To this end, the same transfer and movement maneuvers are conducted until the patient is returned to his hospital bed.

(48) The exemplary embodiment has been described with reference to the preferred embodiments. Obviously, modifications and alterations will occur to others upon reading and understanding the preceding detailed description. It is intended that the exemplary embodiment be construed as including all such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.